CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Revenue from product sales	$ 46,180	$ 110,091
Total revenue	46,180	110,091
Cost of sales for product sales	49,105	109,624
Impairment loss, property and equipment	637	0
Inventory adjustment for lower of cost or market (Note 1)	1,283	1,911
Total cost of sales	51,025	111,535
Selling, general, and administrative expenses	3,879	6,438
Total selling, general and administrative expenses	3,879	6,438
Loss before other income (expense)	(8,724)	(7,882)
Other income (expense)
Interest expense, including loan fee amortization	(695)	(849)
Gain on sale of assets	320	74
Other income	27	9
Total other expense	(348)	(766)
Loss before income taxes	(9,072)	(8,648)
Income tax provision (Note 7)	13	38
Net loss from continuing operations	(9,085)	(8,686)
Income from discontinued operations, net of tax, including gain of $6.0 million in 2015	7,320	1,413
Net Loss	$ (1,765)	$ (7,273)
Continuing operations, basic (in dollars per share)	$ (1.14)	$ (1.15)
Discontinued operations, basic (in dollars per share)	0.92	0.19
Continuing operations, diluted (in dollars per share)	(1.14)	(1.15)
Discontinued operations, diluted (in dollars per share)	$ 0.92	$ 0.19